Rules (规则) are helpful to us, ________ we have to follow (遵守) them. A.because B.but C.if D.so
2022-09-13 11:40:25 172次 江苏省无锡市惠山区2019-2020学年七年级上学期期末英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Rules (规则) are helpful to us, ________ we have to follow (遵守) them.
A.because B.but C.if D.so
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